Adv. users of DVD2AVI "Forced Film" into TMPEnc- sync err

[rasca]

I have been using SmartRipper to get the VOBS, then DVD2AVI into TMPGEnc and have been successfully backing up some DVDs.
Since all of the DVDs I have encountered so far have been 29.97 and have read that 23.96 FPS produces superior results; and it "appears" so I tried using "forced film" top create the D2V file.

That creates an error no matter what I do in TMPenc. The problem is that the audio is out of sync by a number of seconds late into the movie.

What I did was use "forced film", then in TMPenc I used the project wizard and since it was already a 24FPS, and I wanted a 24FPS MPG, then I used "NTSC film".

The above creates MPGs that are notceably superior to keeping it at 30FPS but the audio sync problem is there.

Is it a DVD2AVI problem where the D2V file is incorrect or is there a setting for TMPenc that I have overlooked.

I'm just a month into this and about 15 coasters and countless hours down.

[Regio]

I had the very same problem, and for me, the ONLY ONLY ONLY ONLY ONLY (did I say ONLY?) way to resolve the issue was to turn the forced film switch OFF. I spent hours and hours trying to fixed some other way with no success. I also know that I am doing something wrong since almost everybody here agrees that the FORCED FILM option MUST be ON if your movie results with a porcentage over 95 on the DVD2AVI stats BUT for me (and please change that to caps) FOR ME the only way to get rid off the sync problem was to turn it OFF. I am very new at this (2 weeks) so I am way far from really understand all this matter, so please just try and see the results. You will not lose anything for just trying.

Regards!
Regio

[vhelp]

rasca,

Not ta be so negative, but. . . baloneee!!
23.96fps giving superior results? vs. 29.97? Not so true. I've done.
And both yields pretty much the same quality (if encoded properly)
Too many people NOT encoding 29.97fps correctly, hence poor quality,
while those that do the 23.96fps still have problems cause they don't
take several factors (which I wont go into)
23.96 save's you some bitrate (which is very important for added quality)
if properly encoded per your encoded (tmpg seems to be best here, afaik)
...oh, ans save's you some space as well, but 29.97 can do the same
bitrate/space saving too. Just gotta know how to work it dude.
So, IMO, to sum it up, weather 23.96 vs. 29.97 they BOTH will give you
so called, superior results. Read the FAQ and all the Conversion guides,
and you will see this and learn how to properly encode to great looking
VCD or SVCD.

Sometimes, "forced film" turned on works, and sometimes it DON'T!!
Save goes for vs-versa.
Other times, the "forced film" turned on works great, then, all of the
sudden, turns on you mid-way in the encode to a 29.97 or interlace or
some quick screw-you something or other. Ah, but their are ways even
around this, in my experience. Encoding DVD's are pretty much a piece
of cake. I have soooo many DVD's. I even buy those cheap $4.99 jobs
when I'm in wall-mart, just for the experience or whatever turns me on

But, just remember (case you don't know or understand) and, (before
you ask) the reason why DVD's are soo clear and sharp and great
quality is because they don't have the noise that all our other sources
have... ie, satalete (has some) vhs has lots, cable has lots too, less its
a good "digital" cable singal vs. the old analog cable. All these have noise
due to many factors, but those DVD's are prestine or that is, come from
the studios that. . .well, you get the picture.

I have a DV cam and cap off my satalete (directv, which by the way is
great quality signal) and I have NO problem encoding it (DV's avi) to
a VCD or better yet, SVCD. I've also done some DVD captures to my
DV cam (via miniDV tapes) (for test purposes, etc. ) and all come out
very good quality. NOT dvd, but very good, as far as my taste's go, he, he... So, I pretty much have the DV cam thing licked**

-vhelp

** except one minor problem. The audio. If I have a few items/apps
running, while I'm caping via firewire, and then go to encode the DV's
avi file, the audio will be in slow motion, if you know what I mean.
So, I have to watch out for this. Just did a cap a moment ago, and its
in slow motion in the audio part, BUT the audio is correct when I play
it in powerDVD or winDVD. So, go figure! If anyone has a solution to
this when it happens, please let me know.

[poopyhead]

i use an older version of dvd2avi and it gave me very little problems when FORCED FILM is turned on (when majority of source is FILM, progressive of course)

some people have been saying the new versions of dvd2avi have been giving them audio sync problems, try getting older version

also, IF THE MAJORITY OF THE VIDEO SOURCE IS FILM, IT IS BETTER TO USE FORCED FILM IN DVD2AVI.

people use it incorrectly when a video source is mostly NTSC and they still use FORCED FILM in dvd2avi....that's a big no-no...doing that will result in major lines everywhere (using de-interlace filter will result in lost resolution and jumpiness)

hence, don't use FORCED FILM if the majority of the video source is NTSC, interlaced...otherwise, do use FORCED FILM

[adam]

vhelp encoding in ntsc and ntscfilm will definitely not yield similar quality. Ntscfilm should ALWAYS look much better than film. If it doesnt then you are probably doing something very wrong. Using ntscfilm essentially gives you %20 more bitrate to work with, and at svcd bitrates that is very substantial. With such low bitrate limits in the svcd standard I personally don't believe it is possible to get adequate quality on most movies without encoding in ntscfilm. Also if you use dvd2avi properly than forced film should work perfectly everytime, but of course only on dvds stored in film.

I see so many people complaining about sync problems with forced film but it has nothing to do with the forced film setting it has to do with dvd2avi itself. It does not process audio correctly. If you want to use forced film, which you always should on pure film sources (%95 of higher film) then you need to use another program to process your audio. If you are unfamiliar with the proper methods to extract and process audio from a dvd just try using dvd2svcd to process the audio. Cancel it after it finishes with the audio. This will ensure proper audio encoding. After its done use bbmpeg to multiplex and I guarantee that all your sync problems will be solved.

If your not using bbmpeg to multiplex, or not using the 3:2 pulldown, or are using dvd2avi to process your audio then DONT be suprised when you get sync problems. Forced film actually prevents sync problems but only if used correctly.

[gonz0]

some people have been saying the new versions of dvd2avi have been giving them audio sync problems, try getting older version

I had the latest version of DVD2AVI (1.85 I think). Whenever I tried using forced film, it always said 24 fps in the Frame Rate box. This thoroughly confused me because I thought it was supposed to be 23.976. The difference between 24 and 23.976 fps seems small but it adds up to ~7 second difference over a 2 hour movie. Perhaps this is the source of the sync problems. ...Just a theory.

Now I'm using 1.76, and have encoded 3 movies at 23.976 fps without a problem.

[Regio]

I followed Gonzo's advice, got DVD2AVI version 1.76, turn FORCED FILM option ON and ...... IT WORKED!!! :D sync problem is gone!!! I do believe that the newest version of DVD2AVI has a bug.

Regards!
Regio

[rasca]

Thanks for all the replies!

I tried using the older one and all my sync probs are gone as well. Now I get visibly superior results with the 23.976 encoding! The differeences are not major but in SVCD, every little bit helps.

I first started using 1.76 before I got a successful conversion. By the time I figured out a proper conversion, I had upgraded to the 1.85 mod.
That's why I was always stuck at 1.85 "Assuming" the latest was the greatest!

Wrong wrong wrong. I normally check the steps and changes so that I can track what happened but that was before I figured out how to convert.

Once Again, thanks all!

[SuB-RiC]

When you say you guys have SYNC problems, does that mean the VOB file is out of sync of the MPG encoded file is out of sync?

I encoded an MPG and the audio / video is FINE in PowerDVD or my DXR3 board, but in Mediaplayer, the audio/video is out of sync. The video seems to be playing faster than the music.

[rasca]

Hey I just found something weird as well.

I did not check with Media player - but PowerDVDXP works well with the solution however I was messing around with the HERO player from China and it is out of sync with that player. This is with the same Mpeg.

VOBs are OK with all.

What's going on now? Really weird. I can understand a fraction or so but when the unsynch gap goes to a few seconds - Hmmm....

Don't know - Maybe some knowledgeable person can explain what's going on.

[adam]

Different software players will use different video decoders and some will work better than others at decoding mpeg1. If powerdvdxp works and your satisfied with its quality then just use that.